Suggestions for Intermittent Antenna?
On Apr 3, 6:13*pm, "J. Mc Laughlin" wrote:
Dear Bob: *Great to hear from another of Kraus' boys. *I had a similar
problem with a large LPDA after it had been up for a while. *Its pattern
went backwards. *It had to be taken down whereupon a loose connection was
found. *So many things to go wrong.
At least better weather is coming. * 73, * Mac * *N8TT
--
J. McLaughlin; *Michigan, USA
Home: "Michael Coslo" wrote in message
...
Dave wrote:
what brand/model? *the 40-2cd has a known problem with the loading coil
connections becoming intermittant that gives symptoms just like that.
other loading coils, baluns, or matching section connections may do the
same thing on other models.
"Bob Dixon" wrote in message
...
My 40M beam works only intermittently. *Typically under normal
conditions, the received signals are weak and the SWR is very high.
If I rotate the antenna, it "comes alive" in some directions and works
fine for a while, then dies again. *In all cases, if I transmit into it
with a KW is comes alive and works fine for a while (few minutes) and
then dies again. A single dit will fix it. 100W does not do it.
I replaced the coax which runs around the rotator and it made no
difference. *I just recently learned that a local friend also has an
intermittent antenna which can be restored by transmitting a KW into it.
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